During the French and Indian War, Oliver De Lancey was selected by the New York Assembly, with the support of his brother James De Lancey, the acting Governor, to provide provisions for New York provincial units. During the war, De Lancey commanded the New York Provincial Militia, 1755-1763, and commanded a provincial detachment in the Ticonderoga campaign of 1758. In 1766, De Lancey was one of the judges in the Pendergast case, where the alleged leader of the Dutchess County land rebels was convicted and sentenced to death.
Colonial politics and military command
Oliver De Lancey was a member of the provincial executive council, from 1760, until the American Revolutionary War. In 1768, he allied himself with Isaac Sears and the Sons of Liberty. De Lancey spoke out against the Boston Port Act, of 1774, but did not support non-importation. He was one of the persons responsible, for the creation of the Committee of Fifty. In 1773, he was appointed colonel in chief, of the Southern Military District.
American Revolutionary War
Oliver De Lancey was a senior Loyalist officer, during the American Revolutionary War. De Lancey joined General Howe, on Staten Island, in 1776, and raised and equipped, the three battalions, with his brother, James, of DeLancey's Brigade, consisting of 1,500 loyalist volunteers from the Province of New York, and served as commanding officer on Long Island. The house of Oliver De Lancey was plundered, by Patriots, in November 1777 and confiscated in October 1779.
Family
In the fall of 1742, Oliver De Lancey secretly married Phila Franks, the daughter of a prominent and successful New York Jewish family. For six months, they kept the match secret, but in the spring of 1743, Phila announced the union and went to live with her husband. The letters of Abigail Franks, Phila's mother, to her son Naphtali in England speak of her sense of betrayal and her pain, and she never spoke to Phila again. Her husband, on the other hand, accepted the marriage. Phila and Oliver de Lancey had at least two sons and a daughter:
He left New York for England in 1783, and died on October 27, 1785, in Beverley, Yorkshire. He was buried in Beverley Minster, where his grave and memorial can be visited.
